Software Engineer 1 (TS/SCI w/Poly)

Company: CACI
Location: Columbia
Posted on: April 1, 2026

Job Description:

Job Title: Software Engineer 1 (TS/SCI w/Poly) Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type of Travel: None * * * CACI has an immediate opportunity for a Software Engineer to join a team in the Ft. Meade area. • The Software Engineer (SWE) develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements for the Data Transport System (DTS) • DTS products include but are not limited to: Cloud storage areas: Apache Accumulo (Apache Zookeeper, ApacheHadoop), Oracle DMBS Real time streaming: Storm Distributed in-memory data Cache/Storage: Redis, Graph Compute engine/Query Interface apache Tinkerpop/Gremlin. Rules Engine: JBoss Drools, Apache Camel, Spring Framework: used extensively to standardize/simplify configuration logic control, data access, security, Web-tier, etc. Candidates will: o Analyze user requirements to derive software design and performance requirements o Debug existing software and correct defects o Design and code new software or modify existing software to add new features o Provide application development involving high-performance, multi-threaded, distributed computing environments o Will need experience with enterprise-grade/server-side JAVA More about the role: • The position located in Columbia, MD in support of the Data Transport System (DTS) portfolio providing the infrastructure, data protocols and applications required to move time-critical data in near real-time. • These activities are provided for the local stakeholders as well as the Intelligence Community (IC), the Department of Defense (DoD) and other federal partners • The DTS portfolio encompasses transport streams, messages and files with content size ranging from bytes to Terabytes • Candidates should have experience writing analytics using Apache Hadoop, HDFS, and MapReduce • Experience processing large data sets or high-volume data ingest is a plus • Experience monitoring, maintaining and troubleshooting Apache Accumulo, Apache Hadoop, and Apache Zookeeper deployments is required • Knowledge of the Spring Framework and Dependency Injection. • Linux proficiency is required, all development is done on Linux systems. • Working knowledge of Git, Maven, Gradle • Use configuration management tools and repositories (i.e. Maven, Eclipse, GIT, Redmine) • Ability to support Multi-threaded applications • Knowledge of RESTFUL services and containers (Oracle WebLogic, JBoss, Tomcat) • Working Knowledge of Public Key Enabling (PKE) Required Qualifications: • Active TS/SCI with polygraph • 4 - 10 years’ experience as a SWE, in programs and contracts of similar scope, type, and complexity is required. • Bachelor’s degree in Computer Science or related discipline from an accredited college or university is required. Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor’s degree. • Experience in one (1) or more of the following ten (10): Public Key Enabling (PKE); RESTful services and containers (Oracle WebLogic, JBoss, Tomcat), Java programming language, Perl programing language , Java EE, Secure web (SSL) and file encryption, LDAP (RedHat directory) Java, Linux (CentOS), Modern IDEs (IntelliJ, Eclipse, etc.), Agile Scrum process • 1 - 4 year's experience programming in the Linux, Unix or Windows operating system environment • 2 - 4 year's experience writing/maintaining software in Java or GoLang language • 1 - 2 years' experience with the Spring Framework • 1 year experience providing/using restful interfaces • 2 - 4 years' experience using software development configuration management tools (such as GIT, CVS) • 1 -2 years' experience with test harness software such as Junit or FIT • Potentially CWIP Requirements: IAM Level I Certification This position is contingent on funding and may not be filled immediately. However, this position is representative of positions within CACI that are consistently available. Individuals who apply may also be considered for other positions at CACI. What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. The proposed salary range for this position is: $72,700 - $149,200 CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

Keywords: CACI, Harrisburg , Software Engineer 1 (TS/SCI w/Poly), IT / Software / Systems , Columbia, Pennsylvania